Thumper - Clockwork key pullback

Made an alternate pullback for the Thumper in the style of one of those clockwork keys that old wind up toys and clocks used to have.

Uses the same bolts and nut for the threaded rod as the original

Proper print orientation pictured below, print with 5 walls, 100% infill, Rectilinear infill pattern

Check out my other parts for the Thumper - https://www.printables.com/@JoonChor/collections/2652758

Two ring pullback instead of a single T-pull